Texco - the textualizer collection - is a program which converts files in binary format (typically images, sounds, 3d models, etc) to a textual description which is easy for a human to read, or to a computer to parse. Very old code (2003, 2004 or so?)

Elucidation is a Python module designed to be an extremely powerful backend for audio and video converters. The aim of the module is to do all the heavy lifting while applications using it are little more than interfaces to it.

This is a web interface to convert audio, video and documents to various formats. Acts just like a wizard. RedKonvert is written in php. It's nothing fancy (no CSS no AJAX/javascript). Just plain old HTML and PHP (maintaining the "KISS" ideology).

A utility to allow the analysis and conversion of Native Instruments Reaktor save files. Specifically, the conversion of said files to an XML file, which can then be converted to a number of various other formats. (Ex: pd, Max/MSP, Csound...)

QRip is a intuitive Qt4-based frontend to transcode, a general purpose movie transcoder.
QRip supports DVD ripping and creation, as well as the transcoding of audio or video files from one format to another.

Playlistlib is a portable, C++ library for converting between playlist formats, such as M3U, PLS, and WPL. The project also has a Windows program for converting playlist files and demonstrating the use of the library.

This python GUI will help you to transkode and rename your files Mainly needed for Amarok users that must have UTF8 ID3 tags. This system is using python as it's language , QT(3 for now) as its GUI framework and eyeD3 as ID3 tag manipulation library.

Aaron Speax Audio Editor is a project to develop an audio editing tool that is easy for a user who has little or no knowledge of audio encoding technology. This program uses the Aaron Speaks library (available separately on Sourceforge)